基于特征线法的高超声速飞行器后体/喷管性能分析

摘要

According to the existing literature research can't meet the need of the after body/nozzle quickly preliminary design, fast performance analysis on the after body/nozzle by the method of characteristics (MOC) is studied. Based on the method of characteristics, performance and structure of two-dimensional after body/nozzle are analyzed, the calculation process analysis of after body/nozzle two-dimensional flow field is established, a calculation program is developed, and is verified by a group of examples. The validation result verifies the correctness of the method.%针对现有文献研究不能满足后体/喷管快速初步设计的需要的问题,对采用特征线法进行后体/喷管的快速性能分析进行了研究.基于特征线法理论,分析了高超声速飞行器中的后体/喷管性能和二维结构,建立了后体/喷管二维流场分析的计算流程,开发了程序,并通过一组实例进行验证.验证结果验证了该方法的正确性.